Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

21. The Immune System

Introduction to Cells of the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to Cells of the Immune System

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Multiple Choice

White blood cells engulf bacteria through what process?

Endocytosis

Pinocytosis

Exocytosis

Phagocytosis

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Verified step by step guidance

Understand the role of white blood cells: White blood cells are part of the immune system and are responsible for defending the body against infections and foreign invaders.

Identify the process of engulfing bacteria: The process by which cells engulf large particles, such as bacteria, is known as phagocytosis.

Differentiate between similar processes: Endocytosis is a general term for cellular uptake of materials, pinocytosis refers to the ingestion of liquid into a cell, and exocytosis is the process of expelling materials from a cell.

Recognize the specific process: Phagocytosis is a type of endocytosis specifically used by certain white blood cells, like macrophages and neutrophils, to engulf and digest bacteria and other pathogens.

Conclude with the correct term: Based on the function of white blood cells and the nature of the process, the correct term for engulfing bacteria is phagocytosis.